0:00
All right.
00:01
So we know that plant a produces 30, or plant one, sorry, produces 31 % of the computers.
00:12
Plant 2 produces 40 % of the computers and plant 3 produces the remaining 29%.
00:18
Let's assume that we have 100 computers.
00:23
So then we could just say that plant 1 is producing 31 of them.
00:27
Plant 2 is producing 40 of them.
00:29
And plant 3 is producing 29 of them.
00:30
It makes it more tangible when we deal with actually units rather than.
00:33
Then percentage is in my mind anyway.
00:36
All right.
00:37
So 2 .8 % of the ones from plant 1 are defective.
00:44
Defective.
00:48
So 2 .8 % or 0 .08 as a decimal of 31 are going to be defective due to plant 1.
00:58
So 028 times 31 is 0 .868.
01:05
We will round at the end.
01:06
Obviously, you can't have fractional defective units.
01:09
It's fine.
01:11
All right.
01:11
And then we know that is it 2 .8%, 3 % of the computers from plant 2 are defective and 2 .3 % from plant 3...